The crash was reported shortly before 9 a.m., but a crew from Corporate Environmental Advisors based in West Boylston was still cleaning up diesel and transmission fluid from the accident until after 2 in the afternoon with booms, spill pads and shovels.

About 15 or 20 gallons of fluids spilled onto the roadside, said environmental analyst Robert E. Dunne from the state Department of Environmental Protection.

Police Lt. David Walsh said Mr. Moriarity was driving south when his car crossed into the northbound lane and struck a 2008 Ford Expedition driven by Tamie L. Charbonneau, 41, of 24 Hill St; then a 2009 Toyota Tacoma driven by Nicole D. Bevans, 21, of 243 Valley Road, Plymouth; and then a 2011 Isuzu NPR driven by Michael D. Gallison, 64, of Chestnut St., Vernon, Conn.

The drivers and passengers in the other vehicles signed refusals for treatment, Chief Smith said.

“We have six signed refusals,” he said. “All the vehicles were towed and there was a long line of debris. (Mr. Moriarity’s) engine was in the woods.”

Mr. Moriarity was cited for driving to endanger and failing to stay within marked lanes.

Around 2:30 p.m., a minor accident involving a Chevy Tahoe and Chevy Cavalier occurred at the same site on Route 140. No one was injured.